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gerrit-public.fairphone.software / kernel / msm-4.9 / refs/tags/FP3-REL-Q-3.A.0107 / . / security / selinux / include / xfrm.h
blob: 1450f85b946da462e5ef3576a50d979d15574b8f [file] [log] [blame]
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]1/*
2 * SELinux support for the XFRM LSM hooks
3 *
4 * Author : Trent Jaeger, <jaegert@us.ibm.com>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]5 * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com>
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]6 */
7#ifndef _SELINUX_XFRM_H_
8#define _SELINUX_XFRM_H_
9
David Howells778aae82012-03-26 16:38:47 +0100[diff] [blame]10#include <net/flow.h>
11
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]12int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
Nikolay Aleksandrov52a4c642014-03-07 12:44:19 +0100[diff] [blame]13 struct xfrm_user_sec_ctx *uctx,
14 gfp_t gfp);
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]15int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
16 struct xfrm_sec_ctx **new_ctxp);
17void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
18int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]19int selinux_xfrm_state_alloc(struct xfrm_state *x,
Paul Moore2e5aa862013-07-23 17:38:38 -0400[diff] [blame]20 struct xfrm_user_sec_ctx *uctx);
21int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
22 struct xfrm_sec_ctx *polsec, u32 secid);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]23void selinux_xfrm_state_free(struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700[diff] [blame]24int selinux_xfrm_state_delete(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]25int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]26int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
Paul Moored1b17b02013-07-23 17:38:40 -0400[diff] [blame]27 struct xfrm_policy *xp,
28 const struct flowi *fl);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]29
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]30#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame]31extern atomic_t selinux_xfrm_refcount;
32
33static inline int selinux_xfrm_enabled(void)
34{
35 return (atomic_read(&selinux_xfrm_refcount) > 0);
36}
37
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]38int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
39 struct common_audit_data *ad);
40int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
41 struct common_audit_data *ad, u8 proto);
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]42int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]43int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid);
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]44
45static inline void selinux_xfrm_notify_policyload(void)
46{
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]47 struct net *net;
48
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]49 rtnl_lock();
Fan Duca925cf2014-01-18 09:55:27 +0800[diff] [blame]50 for_each_net(net) {
51 atomic_inc(&net->xfrm.flow_cache_genid);
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]52 rt_genid_bump_all(net);
Fan Duca925cf2014-01-18 09:55:27 +0800[diff] [blame]53 }
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]54 rtnl_unlock();
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]55}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]56#else
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame]57static inline int selinux_xfrm_enabled(void)
58{
59 return 0;
60}
61
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]62static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
63 struct common_audit_data *ad)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]64{
65 return 0;
66}
67
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]68static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
69 struct common_audit_data *ad,
70 u8 proto)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]71{
James Morris4e5ab4c2006-06-09 00:33:33 -0700[diff] [blame]72 return 0;
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]73}
Catherine Zhange6f50712006-03-20 22:49:00 -0800[diff] [blame]74
Paul Moored1b17b02013-07-23 17:38:40 -0400[diff] [blame]75static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid,
76 int ckall)
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]77{
78 *sid = SECSID_NULL;
79 return 0;
80}
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]81
82static inline void selinux_xfrm_notify_policyload(void)
83{
84}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]85
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]86static inline int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid)
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]87{
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]88 *sid = SECSID_NULL;
89 return 0;
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]90}
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]91#endif
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]92
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]93#endif /* _SELINUX_XFRM_H_ */